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Xu Y, Miller CP, Tykodi SS, Akilesh S, Warren EH. Signaling crosstalk between tumor endothelial cells and immune cells in the microenvironment of solid tumors. Front Cell Dev Biol 2024; 12:1387198. [PMID: 38726320 PMCID: PMC11079179 DOI: 10.3389/fcell.2024.1387198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/11/2024] [Indexed: 05/12/2024] Open
Abstract
Tumor-associated endothelial cells (TECs) are crucial mediators of immune surveillance and immune escape in the tumor microenvironment (TME). TECs driven by angiogenic growth factors form an abnormal vasculature which deploys molecular machinery to selectively promote the function and recruitment of immunosuppressive cells while simultaneously blocking the entry and function of anti-tumor immune cells. TECs also utilize a similar set of signaling regulators to promote the metastasis of tumor cells. Meanwhile, the tumor-infiltrating immune cells further induce the TEC anergy by secreting pro-angiogenic factors and prevents further immune cell penetration into the TME. Understanding the complex interactions between TECs and immune cells will be needed to successfully treat cancer patients with combined therapy to achieve vasculature normalization while augmenting antitumor immunity. In this review, we will discuss what is known about the signaling crosstalk between TECs and tumor-infiltrating immune cells to reveal insights and strategies for therapeutic targeting.
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Affiliation(s)
- Yuexin Xu
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Chris P. Miller
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Scott S. Tykodi
- Department of Medicine, Division of Hematology and Oncology, University of Washington, Seattle, WA, United States
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Shreeram Akilesh
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, United States
- Kidney Research Institute, University of Washington, Seattle, WA, United States
| | - Edus H. Warren
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
- Department of Medicine, Division of Hematology and Oncology, University of Washington, Seattle, WA, United States
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2
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Lin HY, Chu PY. Mitochondrial calcium uniporter as biomarker and therapeutic target for breast cancer: Prognostication, immune microenvironment, epigenetic regulation and precision medicine. J Adv Res 2024:S2090-1232(24)00158-9. [PMID: 38663838 DOI: 10.1016/j.jare.2024.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/24/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024] Open
Abstract
INTRODUCTION Mitochondrial calcium uniporter (MCU) is a central subunit of MCU complex that regulate the levels of calcium ions within mitochondria. A comprehensive understanding the implications of MCU in clinical prognostication, biological understandings and therapeutic opportunity of breast cancer (BC) is yet to be determined. OBJECTIVES This study aims to investigate the role of MCU in predictive performance, tumor progression, epigenetic regulation, shaping of tumor immune microenvironment, and pharmacogenetics and the development of anti-tumor therapy for BC. METHODS The downloaded TCGA datasets were used to identify predictive ability of MCU expressions via supervised learning principle. Functional enrichment, mutation landscape, immunological profile, drug sensitivity were examined using bioinformatics analysis and confirmed by experiments exploiting human specimens, in vitro and in vivo models. RESULTS MCU copy numbers increase with MCU gene expression. MCU expression, but not MCU genetic alterations, had a positive correlation with known BC prognostic markers. Higher MCU levels in BC showed modest efficacy in predicting overall survival. In addition, high MCU expression was associated with known BC prognostic markers and with malignancy. In BC tumor and sgRNA-treated cell lines, enrichment pathways identified the involvement of cell cycle and immunity. miR-29a was recognized as a negative epigenetic regulator of MCU. High MCU levels were associated with increased mutation levels in oncogene TP53 and tumor suppression gene CDH1, as well as with an immunosuppressive microenvironment. Sigle-cell sequencing indicated that MCU mostly mapped on to tumor cell and CD8 T-cells. Inter-databases verification further confirmed the aforementioned observation. miR-29a-mediated knockdown of MCU resulted in tumor suppression and mitochondrial dysfunction, as well as diminished metastasis. Furthermore, MCU present pharmacogenetic significance in cellular docetaxel sensitivity and in prediction of patients' response to chemotherapeutic regimen. CONCLUSION MCU shows significant implication in prognosis, outcome prediction, microenvironmental shaping and precision medicine for BC. miR-29a-mediated MCU inhibition exerts therapeutic effect in tumor growth and metastasis.
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Affiliation(s)
- Hung-Yu Lin
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 402, Taiwan; Research Assistant Center, Show Chwan Memorial Hospital, Changhua 500, Taiwan.
| | - Pei-Yi Chu
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 402, Taiwan; School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan; Department of Pathology, Show Chwan Memorial Hospital, Changhua 500, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan 704, Taiwan.
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3
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Sun Z, Cai Y, Chen Y, Jin Q, Zhang Z, Zhang L, Li Y, Huang L, Wang J, Yang Y, Lv Q, Han Z, Xie M, Zhu X. Ultrasound-targeted microbubble destruction promotes PDGF-primed bone mesenchymal stem cell transplantation for myocardial protection in acute Myocardial Infarction in rats. J Nanobiotechnology 2023; 21:481. [PMID: 38102643 PMCID: PMC10725038 DOI: 10.1186/s12951-023-02204-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 11/07/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Ultrasound-targeted microbubble destruction (UTMD) has emerged as a promising strategy for the targeted delivery of bone marrow mesenchymal stem cells (MSCs) to the ischemic myocardium. However, the limited migration capacity and poor survival of MSCs remains a major therapeutic barrier. The present study was performed to investigate the synergistic effect of UTMD with platelet-derived growth factor BB (PDGF-BB) on the homing of MSCs for acute myocardial infarction (AMI). METHODS MSCs from male donor rats were treated with PDGF-BB, and a novel microbubble formulation was prepared using a thin-film hydration method. In vivo, MSCs with or without PDGF-BB pretreatment were transplanted by UTMD after inducing AMI in experimental rats. The therapeutic efficacy of PDGF-BB-primed MSCs on myocardial apoptosis, angiogenesis, cardiac function and scar repair was estimated. The effects and molecular mechanisms of PDGF-BB on MSC migration and survival were explored in vitro. RESULTS The results showed that the biological effects of UTMD increased the local levels of stromal-derived factor-1 (SDF-1), which promoted the migration of transplanted MSCs to the ischemic region. Compared with UTMD alone, UTMD combined with PDGF-BB pretreatment significantly increased the cardiac homing of MSCs, which subsequently reduced myocardial apoptosis, promoted neovascularization and tissue repair, and increased cardiac function 30 days after MI. The vitro results demonstrated that PDGF-BB enhanced MSC migration and protected these cells from H2O2-induced apoptosis. Mechanistically, PDGF-BB pretreatment promoted MSC migration and inhibited H2O2-induced MSC apoptosis via activation of the phosphatidylinositol 3-kinase/serine-threonine kinase (PI3K/Akt) pathway. Furthermore, crosstalk between PDGF-BB and stromal-derived factor-1/chemokine receptor 4 (SDF-1/CXCR4) is involved in the PI3K/AKT signaling pathway. CONCLUSION The present study demonstrated that UTMD combined with PDGF-BB treatment could enhance the homing ability of MSCs, thus alleviating AMI in rats. Therefore, UTMD combined with PDGF-BB pretreatment may offer exciting therapeutic opportunities for strengthening MSC therapy in ischemic diseases.
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Grants
- 81701716; 82230066, 81922033, 81727805, 82171961, 81801715, 81801716 National Natural Science Foundation of China
- 81701716; 82230066, 81922033, 81727805, 82171961, 81801715, 81801716 National Natural Science Foundation of China
- 81701716; 82230066, 81922033, 81727805, 82171961, 81801715, 81801716 National Natural Science Foundation of China
- 81701716; 82230066, 81922033, 81727805, 82171961, 81801715, 81801716 National Natural Science Foundation of China
- 81701716; 82230066, 81922033, 81727805, 82171961, 81801715, 81801716 National Natural Science Foundation of China
- 2018CFB568 National Natural Science Foundation of Hubei
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Affiliation(s)
- Zhenxing Sun
- Anhui Medical University, Hefei, 230031, China
- Department of Ultrasound, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, China
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Yu Cai
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Yihan Chen
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Qiaofeng Jin
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Ziming Zhang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Li Zhang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Yuman Li
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Lei Huang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Jing Wang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Yali Yang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Qing Lv
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China
| | - Zhengyang Han
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China.
- Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Mingxing Xie
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Province Key Laboratory of Molecular Imaging, 430022, Wuhan, China.
| | - Xiangming Zhu
- Anhui Medical University, Hefei, 230031, China.
- Department of Ultrasound, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, China.
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Li J, Hu W, Zhang R, Chen W, Li X, Tang Z. PDGF-C promotes cell proliferation partially via downregulating BOP1. Cell Biol Int 2023; 47:1942-1949. [PMID: 37615370 DOI: 10.1002/cbin.12082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 07/23/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023]
Abstract
Platelet-derived growth factor C (PDGF-C) is a member of PDGF/VEGF family, which is well-known for important functions in the vascular system. It is widely reported that PDGF-C is able to modulate cell proliferation. However, it is still not very clear about this cell modulating mechanism at the molecular level. In a screening of factors regulated by PDGF-C protein, we fished out a factor called block of proliferation 1 (BOP1), which is a pivotal regulator of ribosome biogenesis and cell proliferation. In this study, we investigated the regulation of BOP1 by PDGF-C and its role in modulating cell proliferation. We found that BOP1 was downregulated at both mRNA and protein levels in cells treated with PDGF-C-containing conditioned medium. On the other hand, BOP1 was upregulated in PDGF-C deficient mice. Furthermore, we confirmed that overexpression of BOP1 inhibited HEK293A cell proliferation, whereas knockdown of BOP1 promoted cell proliferation. The mitogenic effect of PDGF-C could be attenuated by downregulation of BOP1. Our results demonstrate a clear PDGF-C-BOP1 signaling that modulates cell proliferation.
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Affiliation(s)
- Jiahui Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Wenjie Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Ruting Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Wei Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Xuri Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Zhongshu Tang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
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5
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Kaesler N, Cheng M, Nagai J, O’Sullivan J, Peisker F, Bindels EM, Babler A, Moellmann J, Droste P, Franciosa G, Dugourd A, Saez-Rodriguez J, Neuss S, Lehrke M, Boor P, Goettsch C, Olsen JV, Speer T, Lu TS, Lim K, Floege J, Denby L, Costa I, Kramann R. Mapping cardiac remodeling in chronic kidney disease. SCIENCE ADVANCES 2023; 9:eadj4846. [PMID: 38000021 PMCID: PMC10672229 DOI: 10.1126/sciadv.adj4846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023]
Abstract
Patients with advanced chronic kidney disease (CKD) mostly die from sudden cardiac death and recurrent heart failure. The mechanisms of cardiac remodeling are largely unclear. To dissect molecular and cellular mechanisms of cardiac remodeling in CKD in an unbiased fashion, we performed left ventricular single-nuclear RNA sequencing in two mouse models of CKD. Our data showed a hypertrophic response trajectory of cardiomyocytes with stress signaling and metabolic changes driven by soluble uremia-related factors. We mapped fibroblast to myofibroblast differentiation in this process and identified notable changes in the cardiac vasculature, suggesting inflammation and dysfunction. An integrated analysis of cardiac cellular responses to uremic toxins pointed toward endothelin-1 and methylglyoxal being involved in capillary dysfunction and TNFα driving cardiomyocyte hypertrophy in CKD, which was validated in vitro and in vivo. TNFα inhibition in vivo ameliorated the cardiac phenotype in CKD. Thus, interventional approaches directed against uremic toxins, such as TNFα, hold promise to ameliorate cardiac remodeling in CKD.
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Affiliation(s)
- Nadine Kaesler
- Clinic for Renal and Hypertensive Disorders, Rheumatological and Immunological Disease, University Hospital of the RWTH Aachen, Aachen, Germany
- Institute of Experimental Medicine and Systems Biology, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Mingbo Cheng
- Institute for Computational Genomics, University Hospital of the RWTH Aachen, Aachen, Germany
| | - James Nagai
- Institute for Computational Genomics, University Hospital of the RWTH Aachen, Aachen, Germany
| | - James O’Sullivan
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Fabian Peisker
- Institute of Experimental Medicine and Systems Biology, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Eric M. J. Bindels
- Department of Hematology, Erasmus Medical Center, Rotterdam, Netherlands
| | - Anne Babler
- Institute of Experimental Medicine and Systems Biology, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Julia Moellmann
- Department of Internal Medicine I, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Patrick Droste
- Clinic for Renal and Hypertensive Disorders, Rheumatological and Immunological Disease, University Hospital of the RWTH Aachen, Aachen, Germany
- Institute of Pathology, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Giulia Franciosa
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark
| | - Aurelien Dugourd
- Heidelberg University, Faculty of Medicine, and Heidelberg University Hospital, Institute for Computational Biomedicine, Bioquant, Heidelberg, Germany
| | - Julio Saez-Rodriguez
- Heidelberg University, Faculty of Medicine, and Heidelberg University Hospital, Institute for Computational Biomedicine, Bioquant, Heidelberg, Germany
| | - Sabine Neuss
- Institute of Pathology, University Hospital of the RWTH Aachen, Aachen, Germany
- Helmholtz Institute for Biomedical Engineering, Biointerface Laboratory, RWTH Aachen University, Aachen, Germany
| | - Michael Lehrke
- Department of Internal Medicine I, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Peter Boor
- Clinic for Renal and Hypertensive Disorders, Rheumatological and Immunological Disease, University Hospital of the RWTH Aachen, Aachen, Germany
- Institute of Pathology, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Claudia Goettsch
- Department of Internal Medicine I, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Jesper V. Olsen
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark
| | - Thimoteus Speer
- Department of Medicine (Nephrology), Goethe University Frankfurt, Frankfurt, Germany
| | - Tzong-Shi Lu
- Brigham and Women’s Hospital, Renal Division, Boston, MA, USA
| | - Kenneth Lim
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jürgen Floege
- Clinic for Renal and Hypertensive Disorders, Rheumatological and Immunological Disease, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Laura Denby
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Ivan Costa
- Institute for Computational Genomics, University Hospital of the RWTH Aachen, Aachen, Germany
| | - Rafael Kramann
- Clinic for Renal and Hypertensive Disorders, Rheumatological and Immunological Disease, University Hospital of the RWTH Aachen, Aachen, Germany
- Institute of Experimental Medicine and Systems Biology, University Hospital of the RWTH Aachen, Aachen, Germany
- Department of Internal Medicine, Nephrology and Transplantation, Erasmus Medical Center, Rotterdam, Netherlands
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6
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Ruffini F, Ceci C, Atzori MG, Caporali S, Levati L, Bonmassar L, Cappellini GCA, D'Atri S, Graziani G, Lacal PM. TARGETING OF PDGF-C/NRP-1 AUTOCRINE LOOP AS A NEW STRATEGY FOR COUNTERACTING THE INVASIVENESS OF MELANOMA RESISTANT TO BRAF INHIBITORS. Pharmacol Res 2023; 192:106782. [PMID: 37127213 DOI: 10.1016/j.phrs.2023.106782] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 04/19/2023] [Accepted: 04/27/2023] [Indexed: 05/03/2023]
Abstract
Melanoma resistance to BRAF inhibitors (BRAFi) is often accompanied by a switch from a proliferative to an invasive phenotype. Therefore, the identification of signaling molecules involved in the development of metastatic properties by resistant melanoma cells is of primary importance. We have previously demonstrated that activation of neuropilin-1 (NRP-1) by platelet-derived growth factor (PDGF)-C confers melanoma cells with an invasive behavior similar to that of BRAFi resistant tumors. Aims of the present study were to evaluate the role of PDGF-C/NRP-1 autocrine loop in the acquisition of an invasive and BRAFi-resistant phenotype by melanoma cells and the effect of its inhibition on drug resistance and extracellular matrix (ECM) invasion. Furthermore, we investigated whether PDGF-C serum levels were differentially modulated by drug treatment in metastatic melanoma patients responsive or refractory to BRAFi as a single agent or in combination with MEK inhibitors (MEKi). The results indicated that human melanoma cells resistant to BRAFi express higher levels of PDGF-C and NRP-1 as compared to their susceptible counterparts. Overexpression occurs early during development of drug resistance and contributes to the invasive properties of resistant cells. Accordingly, silencing of NRP-1 or PDGF-C reduces tumor cell invasiveness. Analysis of PDGF-C in the serum collected from patients treated with BRAFi or BRAFi+MEKi, showed that in responders PDGF-C levels decrease after treatment and raise again at tumor progression. Conversely, in non-responders treatment does not affect PDGF-C serum levels. Thus, blockade of NRP-1 activation by PDGF-C might represent a new therapeutic approach to counteract the invasiveness of BRAFi-resistant melanoma.
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Affiliation(s)
- Federica Ruffini
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Claudia Ceci
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy; Departmental Faculty of Medicine and Surgery, Saint Camillus International University of Health Sciences, Via di Sant'Alessandro, 8, 00131 Rome, Italy
| | | | | | | | | | | | | | - Grazia Graziani
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
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7
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Pilcher W, Thomas BE, Bhasin SS, Jayasinghe RG, Yao L, Gonzalez-Kozlova E, Dasari S, Kim-Schulze S, Rahman A, Patton J, Fiala M, Cheloni G, Kourelis T, Dhodapkar MV, Vij R, Mehr S, Hamilton M, Cho HJ, Auclair D, Avigan DE, Kumar SK, Gnjatic S, Ding L, Bhasin M. Cross center single-cell RNA sequencing study of the immune microenvironment in rapid progressing multiple myeloma. NPJ Genom Med 2023; 8:3. [PMID: 36702834 PMCID: PMC9879959 DOI: 10.1038/s41525-022-00340-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 11/18/2022] [Indexed: 01/27/2023] Open
Abstract
Despite advancements in understanding the pathophysiology of Multiple Myeloma (MM), the cause of rapid progressing disease in a subset of patients is still unclear. MM's progression is facilitated by complex interactions with the surrounding bone marrow (BM) cells, forming a microenvironment that supports tumor growth and drug resistance. Understanding the immune microenvironment is key to identifying factors that promote rapid progression of MM. To accomplish this, we performed a multi-center single-cell RNA sequencing (scRNA-seq) study on 102,207 cells from 48 CD138- BM samples collected at the time of disease diagnosis from 18 patients with either rapid progressing (progression-free survival (PFS) < 18 months) or non-progressing (PFS > 4 years) disease. Comparative analysis of data from three centers demonstrated similar transcriptome profiles and cell type distributions, indicating subtle technical variation in scRNA-seq, opening avenues for an expanded multicenter trial. Rapid progressors depicted significantly higher enrichment of GZMK+ and TIGIT+ exhausted CD8+ T-cells (P = 0.022) along with decreased expression of cytolytic markers (PRF1, GZMB, GNLY). We also observed a significantly higher enrichment of M2 tolerogenic macrophages in rapid progressors and activation of pro-proliferative signaling pathways, such as BAFF, CCL, and IL16. On the other hand, non-progressive patients depicted higher enrichment for immature B Cells (i.e., Pre/Pro B cells), with elevated expression for markers of B cell development (IGLL1, SOX4, DNTT). This multi-center study identifies the enrichment of various pro-tumorigenic cell populations and pathways in those with rapid progressing disease and further validates the robustness of scRNA-seq data generated at different study centers.
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Affiliation(s)
- William Pilcher
- Aflac Cancer and Blood Disorders Center, Atlanta, GA, USA
- Coulter Department of Biomedical Engineering, Emory University, Atlanta, GA, USA
| | - Beena E Thomas
- Aflac Cancer and Blood Disorders Center, Atlanta, GA, USA
- Department of Pediatrics, Emory School of Medicine, Atlanta, GA, USA
| | - Swati S Bhasin
- Aflac Cancer and Blood Disorders Center, Atlanta, GA, USA
- Department of Pediatrics, Emory School of Medicine, Atlanta, GA, USA
| | - Reyka G Jayasinghe
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Lijun Yao
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Edgar Gonzalez-Kozlova
- Human Immune Monitoring Center, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Surendra Dasari
- Division of Biomedical Statistics & Informatics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Seunghee Kim-Schulze
- Human Immune Monitoring Center, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Adeeb Rahman
- Human Immune Monitoring Center, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Mark Fiala
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Giulia Cheloni
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | | | - Madhav V Dhodapkar
- Department of Hematology/Medical Oncology Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Ravi Vij
- Washington University School of Medicine, St Louis, MO, USA
| | - Shaadi Mehr
- Multiple Myeloma Research Foundation (MMRF), Norwalk, CT, USA
| | - Mark Hamilton
- Multiple Myeloma Research Foundation (MMRF), Norwalk, CT, USA
| | - Hearn Jay Cho
- Human Immune Monitoring Center, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Multiple Myeloma Research Foundation (MMRF), Norwalk, CT, USA
| | - Daniel Auclair
- Multiple Myeloma Research Foundation (MMRF), Norwalk, CT, USA
| | - David E Avigan
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Shaji K Kumar
- Mayo Clinic Rochester, Division of Hematology, Rochester, MN, USA
| | - Sacha Gnjatic
- Human Immune Monitoring Center, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Li Ding
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Manoj Bhasin
- Aflac Cancer and Blood Disorders Center, Atlanta, GA, USA.
- Coulter Department of Biomedical Engineering, Emory University, Atlanta, GA, USA.
- Department of Pediatrics, Emory School of Medicine, Atlanta, GA, USA.
- Winship Cancer Institute, Emory University, Atlanta, GA, USA.
- Department of Biomedical Informatics, Emory School of Medicine, Atlanta, GA, USA.
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Deng Z, Wu N, Suo Q, Wang J, Yue Y, Geng L, Zhang Q. Fucoidan, as an immunostimulator promotes M1 macrophage differentiation and enhances the chemotherapeutic sensitivity of capecitabine in colon cancer. Int J Biol Macromol 2022; 222:562-572. [PMID: 36170928 DOI: 10.1016/j.ijbiomac.2022.09.201] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 01/21/2023]
Abstract
Chemotherapy resistance is one of the most critical challenges in colorectal cancer (CRC) treatment. The occurrence and development of chemotherapy resistance closely related to the tumor immune microenvironment (TIME). As the most important immunosuppressive immune cells infiltrating into the TIME, macrophages are essential for chemotherapy resistance in CRC treatment. In this study, we found that a kind of fucoidan (FPS1M) induced macrophages differentiation to the M1 phenotype, and this transformation promoted cancer cells apoptosis both in vitro and in vivo. TNFα is a key mediator of FPS1M-induced tumorcidal activity of macrophages. Mechanistically, as a stimulator of TLR4, FPS1M enhanced macrophages glycolysis and regulated macrophages differentiation to the M1 phenotype by the activation of TLR4 mediated PI3K/AKT/mTOR signaling axis. In addition, FPS1M improved the immunosuppressed tumor microenvironment by increasing the infiltration of M1 macrophages in tumor tissue, which was conducive to improving the sensitivity of tumor to chemotherapy. Collectively, our findings demonstrated that FPS1M has the great potential to be used in tumor immunotherapy. The results also suggested that the combination of FPS1M with capecitabine is an alternative therapy method for colon cancer.
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Affiliation(s)
- Zhenzhen Deng
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ning Wu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine drugs and biological products, Pilot National Laboratory for Marine Science and Technology, Qingdao, China.
| | - Qishan Suo
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech, Qingdao 266071, China
| | - Yang Yue
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech, Qingdao 266071, China
| | - Lihua Geng
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech, Qingdao 266071, China
| | - Quanbin Zhang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Lab for Marine Biology and Biotechnology, Qingdao National Lab for Marine Sci. & Tech, Qingdao 266071, China.
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9
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Cui F, Xu Z, Hu J, Lv Y. Spindle pole body component 25 and platelet-derived growth factor mediate crosstalk between tumor-associated macrophages and prostate cancer cells. Front Immunol 2022; 13:907636. [PMID: 35967419 PMCID: PMC9363606 DOI: 10.3389/fimmu.2022.907636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Tumor-associated macrophages (TAMs) are involved in the growth of prostate cancer (PrC), while the molecular mechanisms underlying the interactive crosstalk between TAM and PrC cells remain largely unknown. Platelet-derived growth factor (PDGF) is known to promote mesenchymal stromal cell chemotaxis to the tumor microenvironment. Recently, activation of spindle pole body component 25 (SPC25) has been shown to promote PrC cell proliferation and is associated with PrC stemness. Here, the relationship between SPC25 and PDGF in the crosstalk between TAM and PrC was investigated. Significant increases in both PDGF and SPC25 levels were detected in PrC specimens compared to paired adjacent normal prostate tissues. A significant correlation was detected between PDGF and SPC25 levels in PrC specimens and cell lines. SPC25 increased PDGF production and tumor cell growth in cultured PrC cells and in xenotransplantation. Mechanistically, SPC25 appeared to activate PDGF in PrC likely through Early Growth Response 1 (Egr1), while the secreted PDGF signaled to TAM through PDGFR on macrophages and polarized macrophages, which, in turn, induced the growth of PrC cells likely through their production and secretion of transforming growth factor β1 (TGFβ1). Thus, our data suggest that SPC25 triggers the crosstalk between TAM and PrC cells via SPC25/PDGF/PDGFR/TGFβ1 receptor signaling to enhance PrC growth.
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Affiliation(s)
- Feilun Cui
- Department of Urology, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Zhipeng Xu
- Department of Urology, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Jianpeng Hu
- Department of Urology, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
- *Correspondence: Jianpeng Hu, ; Yumei Lv,
| | - Yumei Lv
- Department of Health Management Section, Zhenjiang College, Zhenjiang, China
- *Correspondence: Jianpeng Hu, ; Yumei Lv,
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10
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Tan Z, Shi S, Xu J, Liu X, Lei Y, Zhang B, Hua J, Meng Q, Wang W, Yu X, Liang C. RNA N6-methyladenosine demethylase FTO promotes pancreatic cancer progression by inducing the autocrine activity of PDGFC in an m 6A-YTHDF2-dependent manner. Oncogene 2022; 41:2860-2872. [PMID: 35422475 PMCID: PMC9106577 DOI: 10.1038/s41388-022-02306-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 01/07/2023]
Abstract
RNA N6-methyladenosine (m6A) is an emerging regulator of mRNA modifications and represents a novel player in tumorigenesis. Although it has functional significance in both pathological and physiological processes, the role of m6A modification in pancreatic ductal cancer (PDAC) remains elusive. Here, we showed that high fat mass and obesity-associated gene (FTO) expression was associated with a poor prognosis in PDAC patients and that suppression of FTO expression inhibited cell proliferation. Here, m6A sequencing (m6A-seq) was performed to screen genes targeted by FTO. The effects of FTO stimulation on the biological characteristics of pancreatic cancer cells, including proliferation and colony formation, were investigated in vitro and in vivo. The results indicate that FTO directly targets platelet-derived growth factor C (PDGFC) and stabilizes its mRNA expression in an m6A-YTHDF2-dependent manner. m6A-methylated RNA immunoprecipitation-qPCR (MeRIP-qPCR), RNA immunoprecipitation (RIP), and luciferase reporter assays were employed to validate the specific binding of FTO to PDGFC. PDGFC upregulation led to reactivation of the Akt signaling pathway, promoting cell growth. Overall, our study reveals that FTO downregulation leads to increased m6A modifications in the 3' UTR of PDGFC and then modulates the degradation of its transcriptional level in an m6A-YTHDF2-dependent manner, highlighting a potential therapeutic target for PDAC treatment and prognostic prediction.
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Affiliation(s)
- Zhen Tan
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Si Shi
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Jin Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Xiaomeng Liu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Yubin Lei
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Bo Zhang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Jie Hua
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Qingcai Meng
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Wei Wang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China.
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China.
| | - Xianjun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China.
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China.
| | - Chen Liang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China.
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China.
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11
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Solinc J, Ribot J, Soubrier F, Pavoine C, Dierick F, Nadaud S. The Platelet-Derived Growth Factor Pathway in Pulmonary Arterial Hypertension: Still an Interesting Target? Life (Basel) 2022; 12:life12050658. [PMID: 35629326 PMCID: PMC9143262 DOI: 10.3390/life12050658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 12/03/2022] Open
Abstract
The lack of curative options for pulmonary arterial hypertension drives important research to understand the mechanisms underlying this devastating disease. Among the main identified pathways, the platelet-derived growth factor (PDGF) pathway was established to control vascular remodeling and anti-PDGF receptor (PDGFR) drugs were shown to reverse the disease in experimental models. Four different isoforms of PDGF are produced by various cell types in the lung. PDGFs control vascular cells migration, proliferation and survival through binding to their receptors PDGFRα and β. They elicit multiple intracellular signaling pathways which have been particularly studied in pulmonary smooth muscle cells. Activation of the PDGF pathway has been demonstrated both in patients and in pulmonary hypertension (PH) experimental models. Tyrosine kinase inhibitors (TKI) are numerous but without real specificity and Imatinib, one of the most specific, resulted in beneficial effects. However, adverse events and treatment discontinuation discouraged to pursue this therapy. Novel therapeutic strategies are currently under experimental evaluation. For TKI, they include intratracheal drug administration, low dosage or nanoparticles delivery. Specific anti-PDGF and anti-PDGFR molecules can also be designed such as new TKI, soluble receptors, aptamers or oligonucleotides.
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Affiliation(s)
- Julien Solinc
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - Jonathan Ribot
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - Florent Soubrier
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - Catherine Pavoine
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - France Dierick
- Lady Davis Institute for Medical Research, McGill University, Montreal, QC H3T 1E2, Canada;
| | - Sophie Nadaud
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
- Correspondence: ; Tel.: +33-14077-9681
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12
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Litvinov IV, Xie P, Gunn S, Sasseville D, Lefrançois P. The transcriptional landscape analysis of basal cell carcinomas reveals novel signalling pathways and actionable targets. Life Sci Alliance 2021; 4:4/7/e202000651. [PMID: 33972406 PMCID: PMC8200290 DOI: 10.26508/lsa.202000651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 12/19/2022] Open
Abstract
Basal cell carcinoma (BCC) is the most common skin cancer and human malignancy. By analyzing BCC RNA sequencing data according to clinically important features, we identified novel differentially regulated genes and new targetable pathways. Several biomarkers were validated in patient-derived BCC samples. Basal cell carcinoma (BCC) is the most common skin cancer and human malignancy. Although most BCCs are easily managed, some are aggressive locally, require Mohs micrographic surgery, or can even metastasize. In the latter, resistance to Sonic Hedgehog inhibitors may occur. Despite their frequent occurrence in clinical practice, their transcriptional landscape remains poorly understood. By analyzing BCC RNA sequencing data according to clinically important features (all BCCs versus normal skin, high-risk versus low-risk BCCs based solely on histopathological subtypes with aggressive features, advanced versus non-advanced BCCs, and vismodegib-resistant versus vismodegib-sensitive tumors), we have identified novel differentially regulated genes and new targetable pathways implicated in BCC tumorigenesis. Pathways as diverse as IL-17, TLR, Akt/PI3K, cadherins, integrins, PDGF, and Wnt/β-catenin are promising therapeutic avenues for local and systemic agents in managing this common malignancy, including through drug re-purposing of existing medications. We experimentally validated several of these targets as biomarkers in our patient-derived cohort of primary BCC tumors.
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Affiliation(s)
- Ivan V Litvinov
- Division of Dermatology, Department of Medicine, McGill University, Montreal, Canada
| | - Pingxing Xie
- Division of Dermatology, Department of Medicine, McGill University, Montreal, Canada
| | - Scott Gunn
- Division of Dermatology, Department of Medicine, McGill University, Montreal, Canada
| | - Denis Sasseville
- Division of Dermatology, Department of Medicine, McGill University, Montreal, Canada
| | - Philippe Lefrançois
- Division of Dermatology, Department of Medicine, McGill University, Montreal, Canada
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13
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Inhibition of platelet-derived growth factor C and their receptors additionally increases doxorubicin effects in triple-negative breast cancer cells. Eur J Pharmacol 2021; 895:173868. [PMID: 33460613 DOI: 10.1016/j.ejphar.2021.173868] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 01/06/2023]
Abstract
Complex of platelet-derived growth factor (PDGF) isoforms and PDGF receptors have important functions in the regulation of growth and survival of various cell types. Herein, it was found that aberrant PDGFC expression is closely associated with survival rates in triple-negative breast cancer (TNBC) patients. In addition, PDGFC expression was identified to be significantly increased in TNBC cells unlike other subtypes such as PDGFA, PDGFB, and PDGFD. Apparently, the effects of specific PDGF receptor (PDGFR) inhibitors such as sunitinib and ponatinib on HCC1806 and Hs578T TNBC cells were investigated. Both inhibitors decreased cell viability in a dose-dependent manner. In addition, the inhibitors completely inhibited cell growth in both the cell lines and decreased the expression of matrix metalloproteinase-1 (MMP-1), one of the metastasis-related genes. Cell migration was also decreased by the inhibitors. Finally, the combined effects of the inhibitors with doxorubicin (DOX) were investigated. The results showed that the combination of two PDGFR inhibitors with DOX inhibited the growth of cells and enhanced the apoptotic cell death more uniformly than DOX. Consequently, it is demonstrated that PDGFR inhibitors, sunitinib and ponatinib hold the potential for effective treatment of TNBC.
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14
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Li J, Zhang L, Zheng Y, Shao R, Liang Q, Yu W, Wang H, Zou W, Wang D, Xiang J, Lin A. BAD inactivation exacerbates rheumatoid arthritis pathology by promoting survival of sublining macrophages. eLife 2020; 9:e56309. [PMID: 33270017 PMCID: PMC7714394 DOI: 10.7554/elife.56309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022] Open
Abstract
The resistance of synovial sublining macrophages to apoptosis has a crucial role in joint inflammation and destruction in rheumatoid arthritis (RA). However, the underlying mechanism is incompletely understood. Here we report that inactivation of the pro-apoptotic BCL-2 family protein BAD is essential for survival of synovial sublining macrophage in RA. Genetic disruption of Bad leads to more severe joint inflammation and cartilage and bone damage with reduced apoptosis of synovial sublining macrophages in collagen-induced arthritis (CIA) and TNFα transgenic (TNF-Tg) mouse models. Conversely, Bad3SA/3SA mice, in which BAD can no longer be inactivated by phosphorylation, are protected from collagen-induced arthritis. Mechanistically, phosphorylation-mediated inactivation of BAD specifically protects synovial sublining macrophages from apoptosis in highly inflammatory environment of arthritic joints in CIA and TNF-Tg mice, and in patients with RA, thereby contributing to RA pathology. Our findings put forward a model in which inactivation of BAD confers the apoptosis resistance on synovial sublining macrophages, thereby contributing to the development of arthritis, suggesting that BAD may be a potential therapeutic target for RA.
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Affiliation(s)
- Jie Li
- The State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of SciencesShanghaiChina
- School of Life Science and Technology, ShanghaiTech UniversityShanghaiChina
- Ben May Department for Cancer Research, The University of ChicagoChicagoUnited States
| | - Liansheng Zhang
- The State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of SciencesShanghaiChina
- Ben May Department for Cancer Research, The University of ChicagoChicagoUnited States
- Institute of Modern Biology, Nanjing UniversityNanjingChina
| | - Yongwei Zheng
- Blood Research Institute, Blood Center of WisconsinMilwaukeeUnited States
| | - Rui Shao
- The State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of SciencesShanghaiChina
| | - Qianqian Liang
- Department of Orthopaedics, Longhua Hospital, Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Weida Yu
- The State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of SciencesShanghaiChina
- School of Life Science and Technology, ShanghaiTech UniversityShanghaiChina
| | - Hongyan Wang
- The State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of SciencesShanghaiChina
| | - Weiguo Zou
- The State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of SciencesShanghaiChina
| | - Demin Wang
- Blood Research Institute, Blood Center of WisconsinMilwaukeeUnited States
| | - Jialing Xiang
- Department of Biology, Illinois Institute of TechnologyChicagoUnited States
| | - Anning Lin
- Ben May Department for Cancer Research, The University of ChicagoChicagoUnited States
- Institute of Modern Biology, Nanjing UniversityNanjingChina
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15
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Wang X, Wang C, Cong J, Bao H, Liu X, Hao C. Regenerative Potential of Menstrual Blood-Derived Stem Cells and Platelet-Derived Growth Factor in Endometrial Injury. Med Sci Monit 2020; 26:e919251. [PMID: 32112554 PMCID: PMC7063849 DOI: 10.12659/msm.919251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background Endometrial regeneration is essential for normal endometrial function; however, it is unclear whether and how menstrual blood-derived stem cells (MenSCs) and platelet-derived growth factor (PGDF) are associated with this phenomenon. The present study explored this topic. Material/Methods EM-E6/E7/hTERT cells were divided into 5 groups: control group, NC group, PDGF group, MenSCs group, and PDGF+MenSCs group. The effects of MenSCs and PDGF on cell proliferation, invasion, and microvascular formation of endometrial epithelium were investigated by CCK-8, Transwell, and tube formation assays, respectively. Mouse endometrial injury models were established and mice were randomly divided into control, model, PDGF, MenSCs, and PDGF+MenSCs groups. Pathological change was examined with hematoxylin and eosin (H&E) staining. Microvessel formation of endometrial epithelium was estimated by detecting the expression of CD34 protein with immunohistochemical (IHC) staining. Western blot analysis was used to detect the activation of Akt and Bad proteins in endometrial tissue. Results MenSCs, PDGF, and the combination treatments significantly promoted the proliferation, migration, and tube formation of endometrial epithelium compared to the control and NC group. The combination of MenSCs and PDGF remarkably promoted re-epithelialization and endometrial repair. IHC staining analysis showed significant increases in CD34 expression of the endometrial tissue following treatment with PDGF and MenSCs. The combination treatments also markedly enhanced the phosphorylation of Akt and Bad in endometrial tissue. Conclusions These results suggest that MenSCs and PDGF may be candidate substances for endometrial injury repair.
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Affiliation(s)
- Xinrong Wang
- Department of Reproduction Medicine, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China (mainland)
| | - Chengde Wang
- Department of Thoracic Surgery, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China (mainland)
| | - Jianxiang Cong
- Department of Reproduction Medicine, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China (mainland)
| | - Hongchu Bao
- Department of Reproduction Medicine, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China (mainland)
| | - Xuemei Liu
- Department of Reproduction Medicine, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China (mainland)
| | - Cuifang Hao
- Department of Reproduction Medicine, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China (mainland)
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16
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Afzal A, Sarfraz M, Li GL, Ji SP, Duan SF, Khan NH, Wu DD, Ji XY. Taking a holistic view of PEST-containing nuclear protein (PCNP) in cancer biology. Cancer Med 2019; 8:6335-6343. [PMID: 31487123 PMCID: PMC6797571 DOI: 10.1002/cam4.2465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/11/2019] [Accepted: 07/12/2019] [Indexed: 12/15/2022] Open
Abstract
Polypeptide sequences enriched with proline (P), glutamic acid (E), aspartic acid (D) and serine (S)/ threonine (T) (PEST) have been reported to be the most abundant and frequently distributed at the cellular level. There is growing evidence that PEST sequences act as proteolytic recognition signals for degradation of residual proteins which is critical for activation or deactivation of regulatory proteins involved in cellular signaling pathways of cell growth, differentiation, stress responses and physiological death. A PEST containing nuclear protein (PCNP) was demonstrated as a tumor suppressor in a neuroblastoma cancer model and tumor promoter in lung adenocarcinoma cancer model. Its unique properties like ubiquitination by NIRF, co‐localization with NIRF in nucleus and tumor progression attract the attention of researchers. PCNP was reported to be ubiquitinated by ring finger protein NIRF in E3 ligase manner and as modulator of MAPK and PI3K/AKT/mTOR signaling pathways. In this review, we summarize PCNP linked DNA damage response, Post translational modifications, and transportation to address initiation, prognosis, and resistance of tumor cells in terms of cell cycle regulation, transcription and apoptosis. Hence, we demonstrate PCNP as a novel target in cancer diagnosis and treatment.
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Affiliation(s)
- Attia Afzal
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China.,Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Muhammad Sarfraz
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China.,Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan.,Muncipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, China
| | - Guang-Lei Li
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Shao-Ping Ji
- Muncipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, China
| | - Shao-Feng Duan
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China.,Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng, China
| | - Nazeer Hussain Khan
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Dong-Dong Wu
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China.,School of Basic Medical Sciences, Henan University College of Medicine, Kaifeng, China
| | - Xin-Ying Ji
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China.,Kaifeng Key Laboratory of Infection and Biological Safety (KLIBS), Henan University College of Medicine, Kaifeng, China
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17
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Minchenko OH, Viletska YM, Minchenko DO, Davydov VV. Insulin resistance in obese adolescents and adult men modifies the expression of proliferation related genes. UKRAINIAN BIOCHEMICAL JOURNAL 2019. [DOI: 10.15407/ubj91.03.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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18
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Sun B, Zhou Y, Fang Y, Li Z, Gu X, Xiang J. Colorectal cancer exosomes induce lymphatic network remodeling in lymph nodes. Int J Cancer 2019; 145:1648-1659. [PMID: 30734278 DOI: 10.1002/ijc.32196] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/26/2019] [Accepted: 01/31/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Bo Sun
- Department of Gastric CancerFudan University Shanghai Cancer Center Shanghai China
- Department of General SurgeryHuashan Hospital, Fudan University Shanghai China
| | - Yiming Zhou
- Department of General SurgeryHuashan Hospital, Fudan University Shanghai China
| | - Yantian Fang
- Department of Gastric CancerFudan University Shanghai Cancer Center Shanghai China
| | - Zhenyang Li
- Department of General SurgeryHuashan Hospital, Fudan University Shanghai China
| | - Xiaodong Gu
- Department of General SurgeryHuashan Hospital, Fudan University Shanghai China
| | - Jianbin Xiang
- Department of General SurgeryHuashan Hospital, Fudan University Shanghai China
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Salmerón ML, Quintana-Aguiar J, De La Rosa JV, López-Blanco F, Castrillo A, Gallardo G, Tabraue C. Phenalenone-photodynamic therapy induces apoptosis on human tumor cells mediated by caspase-8 and p38-MAPK activation. Mol Carcinog 2018; 57:1525-1539. [PMID: 30035337 DOI: 10.1002/mc.22875] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 06/23/2018] [Accepted: 07/18/2018] [Indexed: 12/28/2022]
Abstract
Photodynamic therapy (PDT) is a rising and hopeful treatment for solid tumors and others malignancies. PDT uses harmless visible light to activate a tumor-associated photosensitizer (PS). The excited PS generates cytotoxic reactive oxygen species (ROS) that induce damage and death of tumor cells. It is known that certain phytoalexins and phytoanticipins derived from plants often display a PS-like activity due to a phenalenone (PN) moiety-an efficient singlet oxygen photosensitizer-in its skeleton. The aim of this study is to explore the phototoxic properties of PN on the human cell line tumor-derived HL60 (acute promyelocytic leukemia) and to identify the cell-specific targets of ROS involved in the tumor cell death. Our results reveal that PN acts as an excellent PS, showing a potent antitumor cell activity in presence of light. PN-PDT generates intracellular ROS, via oxidation reaction mechanisms type I and II, resulting in an induction of apoptosis. Moreover, both extrinsic (through direct activation of caspase-3) and intrinsic (through mitochondrial depolarization) pathways of apoptosis are induced by PN-PDT. Using pharmacologic inhibitors, we also find that PN-PDT activates caspase-8/tBid and p38-MAPK, triggering the activation of the apoptotic pathways. Although, survival pathways are also promoted through PI3 K/Akt and JNK activation, the net result of PN-PDT is the tumor cell death. The present work identifies to PN, for the first time, as a potent photosensitizer in human tumor cell lines and proposes a mechanism by which ROS induces apoptosis of tumor cell.
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Affiliation(s)
- María L Salmerón
- Facultad de Ciencias, Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Punta Arenas, Chile
| | - José Quintana-Aguiar
- Departamento de Bioquímica y Biología Molecular, Fisiología, Genética e Inmunología. Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Juan V De La Rosa
- Unidad de Biomedicina Asociada al Consejo Superior de Investigaciones Científicas (Instituto de Investigaciones Biomédicas "Alberto Sols" CSIC-Universidad Autónoma de Madrid), Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Grupo de Investigación Medio Ambiente y Salud (GIMAS), Universidad de las Palmas de Gran Canaria, Las Palmas, Spain
| | - Félix López-Blanco
- Unidad de Biomedicina Asociada al Consejo Superior de Investigaciones Científicas (Instituto de Investigaciones Biomédicas "Alberto Sols" CSIC-Universidad Autónoma de Madrid), Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Grupo de Investigación Medio Ambiente y Salud (GIMAS), Universidad de las Palmas de Gran Canaria, Las Palmas, Spain
| | - Antonio Castrillo
- Unidad de Biomedicina Asociada al Consejo Superior de Investigaciones Científicas (Instituto de Investigaciones Biomédicas "Alberto Sols" CSIC-Universidad Autónoma de Madrid), Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Grupo de Investigación Medio Ambiente y Salud (GIMAS), Universidad de las Palmas de Gran Canaria, Las Palmas, Spain
| | - Germán Gallardo
- Unidad de Biomedicina Asociada al Consejo Superior de Investigaciones Científicas (Instituto de Investigaciones Biomédicas "Alberto Sols" CSIC-Universidad Autónoma de Madrid), Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Grupo de Investigación Medio Ambiente y Salud (GIMAS), Universidad de las Palmas de Gran Canaria, Las Palmas, Spain
| | - Carlos Tabraue
- Unidad de Biomedicina Asociada al Consejo Superior de Investigaciones Científicas (Instituto de Investigaciones Biomédicas "Alberto Sols" CSIC-Universidad Autónoma de Madrid), Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Grupo de Investigación Medio Ambiente y Salud (GIMAS), Universidad de las Palmas de Gran Canaria, Las Palmas, Spain.,Departamento de Morfología, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
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20
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Abstract
PDGFs and their receptors are critical regulators of numerous tissues and organs, including the eye. Extensive studies have shown that PDGFs and their receptors play critical roles in many ocular neovascular diseases, such as neovascular age-related macular degeneration, retinopathy of prematurity, and proliferative vitreoretinopathy. In addition, PDGFs and PDGFRs are also important players in ocular diseases involving the degeneration of retinal neuronal and vascular cells, such as glaucoma and retinitis pigmentosa. Due to their critical roles in the pathogenesis of many blinding ocular diseases, the PDGFs and PDGFRs have been considered as important target molecules for the treatment of eye diseases. PDGF-C and PDGF-D are relatively new members of the PDGF family and are potent angiogenic and survival factors. Recent studies have demonstrated their important roles in different types of eye diseases. Thus, modulating PDGF-C and PDGF-D activities may have therapeutic values for the treatment of ocular neovascular and degenerative diseases. This review mainly summarizes the recent advances on PDGF-C and PDGF-D biology in relationship to some major ocular diseases.
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Affiliation(s)
- Anil Kumar
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54 South Xianlie Road, Guangzhou 510060, Guangdong, PR China
| | - Xuri Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54 South Xianlie Road, Guangzhou 510060, Guangdong, PR China.
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21
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Ruffini F, Levati L, Graziani G, Caporali S, Atzori MG, D'Atri S, Lacal PM. Platelet-derived growth factor-C promotes human melanoma aggressiveness through activation of neuropilin-1. Oncotarget 2017; 8:66833-66848. [PMID: 28977999 PMCID: PMC5620139 DOI: 10.18632/oncotarget.18706] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 05/22/2017] [Indexed: 12/14/2022] Open
Abstract
Despite recent progress in advanced melanoma therapy, identification of signalling pathways involved in melanoma switch from proliferative to invasive states is still crucial to uncover new therapeutic targets for improving the outcome of metastatic disease. Neuropilin-1 (NRP-1), a co-receptor for vascular endothelial growth factor-A (VEGF-A) tyrosine kinase receptors (VEGFRs), has been suggested to play a relevant role in melanoma progression. NRP-1 can be activated by VEGF-A also in the absence of VEGFRs, triggering specific signal transduction pathways (e.g. p130Cas phosphorylation). Since melanoma cells co-expressing high levels of NRP-1 and platelet derived growth factor-C (PDGF-C) show a highly invasive behaviour and PDGF-C shares homology with VEGF-A, in this study we have investigated whether PDGF-C directly interacts with NRP-1 and promotes melanoma aggressiveness. Results demonstrate that PDGF-C specifically binds in vitro to NRP-1. In melanoma cells expressing NRP-1 but lacking PDGFRα, PDGF-C stimulates extra-cellular matrix (ECM) invasion and induces p130Cas phosphorylation. Blockade of PDGF-C function by neutralizing antibodies or reduction of its secretion by specific siRNA inhibit ECM invasion and vasculogenic mimicry. Moreover, PDGF-C silencing significantly down-modulates the expression of Snail, a transcription factor involved in tumour invasiveness that is highly expressed in NRP-1 positive melanoma cells. In conclusion, our results demonstrate for the first time a direct activation of NRP-1 by PDGF-C and strongly suggest that autocrine and/or paracrine stimulation of NRP-1 by PDGF-C might contribute to the acquisition of a metastatic phenotype by melanoma cells.
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Affiliation(s)
- Federica Ruffini
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
| | - Lauretta Levati
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
| | - Grazia Graziani
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Simona Caporali
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
| | | | - Stefania D'Atri
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
| | - Pedro M Lacal
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
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22
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Lewandowski SA, Fredriksson L, Lawrence DA, Eriksson U. Pharmacological targeting of the PDGF-CC signaling pathway for blood-brain barrier restoration in neurological disorders. Pharmacol Ther 2016; 167:108-119. [PMID: 27524729 PMCID: PMC5341142 DOI: 10.1016/j.pharmthera.2016.07.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/25/2016] [Indexed: 12/12/2022]
Abstract
Neurological disorders account for a majority of non-malignant disability in humans and are often associated with dysfunction of the blood-brain barrier (BBB). Recent evidence shows that despite apparent variation in the origin of neural damage, the central nervous system has a common injury response mechanism involving platelet-derived growth factor (PDGF)-CC activation in the neurovascular unit and subsequent dysfunction of BBB integrity. Inhibition of PDGF-CC signaling with imatinib in mice has been shown to prevent BBB dysfunction and have neuroprotective effects in acute damage conditions, including traumatic brain injury, seizures or stroke, as well as in neurodegenerative diseases that develop over time, including multiple sclerosis and amyotrophic lateral sclerosis. Stroke and traumatic injuries are major risk factors for age-associated neurodegenerative disorders and we speculate that restoring BBB properties through PDGF-CC inhibition might provide a common therapeutic opportunity for treatment of both acute and progressive neuropathology in humans. In this review we will summarize what is known about the role of PDGF-CC in neurovascular signaling events and the variety of seemingly different neuropathologies it is involved in. We will also discuss the pharmacological means of therapeutic interventions for anti-PDGF-CC therapy and ongoing clinical trials. In summary: inhibition of PDGF-CC signaling can be protective for immediate injury and decrease the long-term neurodegenerative consequences.
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Affiliation(s)
- Sebastian A Lewandowski
- Tissue Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Scheeles v. 2, 17177, Stockholm, Sweden.
| | - Linda Fredriksson
- Vascular Biology Groups, Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Scheeles v. 2, 17177, Stockholm, Sweden; Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 7301 Medical Science Research Building III, 1150 West Medical Center Drive, Ann Arbor, MI 48109-0644, USA
| | - Daniel A Lawrence
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, 7301 Medical Science Research Building III, 1150 West Medical Center Drive, Ann Arbor, MI 48109-0644, USA
| | - Ulf Eriksson
- Tissue Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Scheeles v. 2, 17177, Stockholm, Sweden.
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Voulgari E, Bakandritsos A, Galtsidis S, Zoumpourlis V, Burke BP, Clemente GS, Cawthorne C, Archibald SJ, Tuček J, Zbořil R, Kantarelou V, Karydas AG, Avgoustakis K. Synthesis, characterization and in vivo evaluation of a magnetic cisplatin delivery nanosystem based on PMAA-graft-PEG copolymers. J Control Release 2016; 243:342-356. [PMID: 27793687 DOI: 10.1016/j.jconrel.2016.10.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 10/15/2016] [Accepted: 10/23/2016] [Indexed: 12/11/2022]
Abstract
The development of anticancer drug delivery systems which retain or enhance the cytotoxic properties of the drug to tumorous tissues, while reducing toxicity to other organs is of key importance. We investigated different poly(methacrylic acid)-g-poly(ethyleneglycol methacrylate) polymers as in situ coating agents for magnetite nanocrystallites. The obtained magnetic nano-assemblies were in turn thoroughly characterized for their structural, colloidal and physicochemical properties (drug loading capacity/release, magnetic field triggered drug release, cell uptake and localization) in order to select the best performing system. With the focus on in vivo validation of such magnetic drug delivery systems for first time, we selected cisplatin as the drug, since it is a potent anticancer agent which exhibits serious side effects due to lack of selectivity. In addition, cisplatin would offer facile determination of the metal content in the animal tissues for biodistribution studies. Alongside post-mortem Pt determination in the tissues, the biodistribution of the drug nanocarriers was also monitored in real time with PET-CT (positron emission tomography/computed tomography) with and without the presence of magnetic field gradients; using a novel chelator-free method, the nanoparticles were radiolabeled with 68Ga without having to alter their structure with chemical modifications for conjugation of radiochelators. The ability to be radiolabeled in such a straightforward but very robust way, along with their measured high MRI response, renders them attractive for dual imaging, which is an important functionality for translational investigations. Their anticancer properties were evaluated in vitro and in vivo, in a cisplatin resistant HT-29 human colon adenocarcinoma model, with and without the presence of magnetic field gradients. Enhanced anticancer efficacy and reduced toxicity was recorded for the cisplatin-loaded nanocarriers in comparison to the free cisplatin, particularly when a magnetic field gradient was applied at the tumor site. Post mortem and real-time tissue distribution studies did not reveal increased cisplatin concentration in the tumor site, suggesting that the enhanced anticancer efficacy of the cisplatin-loaded nanocarriers is driven by mechanisms other than increased cisplatin accumulation in the tumors.
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Affiliation(s)
| | - Aristides Bakandritsos
- Department of Materials Science, University of Patras, Patras 26500, Greece; Regional Centre for Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, 17.listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Sotiris Galtsidis
- Institute of Biology, Medicinal Chemistry & Biotechnology, NHRF, Athens, Greece
| | | | - Benjamin P Burke
- Department of Chemistry and Positron Emission Tomography Research Centre, University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - Gonçalo S Clemente
- Department of Chemistry and Positron Emission Tomography Research Centre, University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - Christopher Cawthorne
- Department of Chemistry and Positron Emission Tomography Research Centre, University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - Stephen J Archibald
- Department of Chemistry and Positron Emission Tomography Research Centre, University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - Jiři Tuček
- Regional Centre for Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, 17.listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Radek Zbořil
- Regional Centre for Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, 17.listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Vasiliki Kantarelou
- Institute of Nuclear and Particle Physics, NCSR "Demokritos", Athens, Greece
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24
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Almahrog AJ, Radwan LRS, El-Zehery RR, Mourad MI, Grawish ME. In vivo association of immunophenotyped macrophages expressing CD163 with PDGF-B in gingival overgrowth-induced by three different categories of medications. J Oral Biol Craniofac Res 2016; 6:10-7. [PMID: 26937363 DOI: 10.1016/j.jobcr.2015.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 12/19/2015] [Indexed: 12/23/2022] Open
Abstract
AIMS This study was carried out to identify and outline the degree of relationship between immunophenotyped macrophages expressing CD163 and PDGF-B in cyclosporine-A, phenytoin, and nifedipine-induced gingival overgrowth. METHODS Eighty adult male albino rats were selected and divided into four equal groups. Group I received no treatment. Rats of groups II, III, and IV were administered cyclosporine-A, phenytoin, and nifedipine, respectively. Routine tissue processing was carried out for staining with CD163 and PDGF-B. The results of this study were analyzed statistically. RESULTS Group I exhibited score 0 gingival overgrowth while group II yielded score 3 with blunt and bulbous gingival crests. Rats of group III showed score 2 with knife edge and group IV revealed less pronounced gingival overgrowth and mostly the gingival crest was knife edge. Group II had the highest mean value for CD163 while group I showed the lowest value. In addition, group II had the highest mean value for PDGF-B while group I showed the lowest value. Statistically, there was an overall significant difference between the studied groups as well as between each two groups. CONCLUSION Strong association exists between immunophenotyped macrophages expressing CD163 and PDGF-B in GO induced by these medications. In addition, CD163 and PDGF-B upregulated in cyclosporine-A-induced GO compared to phenytoin and nifedipine medications.
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Affiliation(s)
- Amina J Almahrog
- Department of Oral Biology, Faculty of Dentistry, Almergib University, Libya
| | - Lobna R S Radwan
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Egypt
| | - Rehab R El-Zehery
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Egypt
| | - Mohamed I Mourad
- Department of Oral Pathology, Faculty of Dentistry, Mansoura University, Egypt
| | - Mohammed E Grawish
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Egypt; Department of Oral Biology, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Gamasa, Mansoura, Egypt
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25
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Na YR, Jung D, Gu GJ, Jang AR, Suh YH, Seok SH. The early synthesis of p35 and activation of CDK5 in LPS-stimulated macrophages suppresses interleukin-10 production. Sci Signal 2015; 8:ra121. [DOI: 10.1126/scisignal.aab3156] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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26
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Li M, Lin F, Lin Y, Peng W. Extracellular polysaccharide from Bordetella species reduces high glucose-induced macrophage apoptosis via regulating interaction between caveolin-1 and TLR4. Biochem Biophys Res Commun 2015; 466:748-54. [DOI: 10.1016/j.bbrc.2015.09.125] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 09/23/2015] [Indexed: 11/26/2022]
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27
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Pascuali N, Scotti L, Abramovich D, Irusta G, Di Pietro M, Bas D, Tesone M, Parborell F. Inhibition of platelet-derived growth factor (PDGF) receptor affects follicular development and ovarian proliferation, apoptosis and angiogenesis in prepubertal eCG-treated rats. Mol Cell Endocrinol 2015; 412:148-58. [PMID: 25937181 DOI: 10.1016/j.mce.2015.04.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 04/24/2015] [Accepted: 04/24/2015] [Indexed: 11/21/2022]
Abstract
The platelet-derived growth factor (PDGF) system is crucial for blood vessel stability. In the present study, we evaluated whether PDGFs play a critical intraovarian survival role in gonadotropin-dependent folliculogenesis. We examined the effect of intrabursal administration of a selective platelet-derived growth factor receptor (PDGFR) inhibitor (AG1295) on follicular development, proliferation, apoptosis and blood vessel formation and stability in ovaries from rats treated with equine chorionic gonadotropin (eCG). The percentages of preantral follicles (PAFs) and early antral follicles (EAFs) were lower in AG1295-treated ovaries than in control ovaries (p < 0.01-0.05). The percentage of atretic follicles (AtrFs) increased in AG1295-treated ovaries compared to control (p < 0.05). The ovarian weight and estradiol concentrations were lower in AG1295-treated ovaries than in the control group (p < 0.01 and p < 0.05, respectively), whereas progesterone concentrations did not change. AG1295 decreased the proliferation index in EAFs (p < 0.05) and increased the percentage of nuclei positive for cleaved caspase-3 and apoptotic DNA fragmentation (p < 0.01-0.05). AG1295 increased the expression of Bax (p < 0.05) without changes in the expression of Bcl-2 protein. AG1295-treated ovaries increased the cleavage of caspase-8 (p < 0.05) and decreased AKT and BAD phosphorylation compared with control ovaries (p < 0.05). AG1295 caused a decrease not only in the endothelial cell area but also in the area of pericytes and vascular smooth muscle cells (VSMCs) in the ovary (p < 0.05). Our findings suggest that the local inhibition of PDGFs causes an increase in ovarian apoptosis through an imbalance in the ratio of antiapoptotic to proapoptotic proteins, thus leading a larger number of follicles to atresia. PDGFs could exert their mechanism of action through an autocrine/paracrine effect on granulosa and theca cells mediated by PDGFRs. In conclusion, these data clearly indicate that the PDGF system is necessary for follicular development induced by gonadotropins.
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Affiliation(s)
- Natalia Pascuali
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina
| | - Leopoldina Scotti
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina
| | - Dalhia Abramovich
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina
| | - Griselda Irusta
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina
| | - Mariana Di Pietro
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina
| | - Diana Bas
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina
| | - Marta Tesone
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina; Departamento de Química Biológica, Facultad de Ciencias Exactas, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Fernanda Parborell
- Instituto de Biología y Medicina Experimental (IByME), CONICET, Buenos Aires, Argentina.
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28
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Na YR, Hong JH, Lee MY, Jung JH, Jung D, Kim YW, Son D, Choi M, Kim KP, Seok SH. Proteomic Analysis Reveals Distinct Metabolic Differences Between Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF) and Macrophage Colony Stimulating Factor (M-CSF) Grown Macrophages Derived from Murine Bone Marrow Cells. Mol Cell Proteomics 2015; 14:2722-32. [PMID: 26229149 DOI: 10.1074/mcp.m115.048744] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Indexed: 12/27/2022] Open
Abstract
Macrophages are crucial in controlling infectious agents and tissue homeostasis. Macrophages require a wide range of functional capabilities in order to fulfill distinct roles in our body, one being rapid and robust immune responses. To gain insight into macrophage plasticity and the key regulatory protein networks governing their specific functions, we performed quantitative analyses of the proteome and phosphoproteome of murine primary GM-CSF and M-CSF grown bone marrow derived macrophages (GM-BMMs and M-BMMs, respectively) using the latest isobaric tag based tandem mass tag (TMT) labeling and liquid chromatography-tandem mass spectrometry (LC-MS/MS). Strikingly, metabolic processes emerged as a major difference between these macrophages. Specifically, GM-BMMs show significant enrichment of proteins involving glycolysis, the mevalonate pathway, and nitrogen compound biosynthesis. This evidence of enhanced glycolytic capability in GM-BMMs is particularly significant regarding their pro-inflammatory responses, because increased production of cytokines upon LPS stimulation in GM-BMMs depends on their acute glycolytic capacity. In contrast, M-BMMs up-regulate proteins involved in endocytosis, which correlates with a tendency toward homeostatic functions such as scavenging cellular debris. Together, our data describes a proteomic network that underlies the pro-inflammatory actions of GM-BMMs as well as the homeostatic functions of M-BMMs.
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Affiliation(s)
- Yi Rang Na
- From the ‡Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Ji Hye Hong
- §Department of Applied Chemistry, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea
| | - Min Yong Lee
- §Department of Applied Chemistry, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea
| | - Jae Hun Jung
- §Department of Applied Chemistry, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea
| | - Daun Jung
- From the ‡Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Young Won Kim
- From the ‡Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Dain Son
- From the ‡Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Murim Choi
- ¶Department of Biomedical Science, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
| | - Kwang Pyo Kim
- §Department of Applied Chemistry, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea;
| | - Seung Hyeok Seok
- From the ‡Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, 103 Daehak-ro, Chongno-gu, Seoul 110-799, South Korea
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29
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Na YR, Jung D, Yoon BR, Lee WW, Seok SH. Endogenous prostaglandin E2 potentiates anti-inflammatory phenotype of macrophage through the CREB-C/EBP-β cascade. Eur J Immunol 2015; 45:2661-71. [PMID: 26118414 DOI: 10.1002/eji.201545471] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 05/20/2015] [Accepted: 06/25/2015] [Indexed: 11/06/2022]
Abstract
Macrophages have important functions in tissue homeostasis, but the exact mechanisms regarding wide spectrum of macrophage phenotype remain unresolved. In this study, we report that mouse bone marrow derived naïve macrophages produce prostaglandin E2 (PGE2 ) endogenously, resulting in anti-inflammatory gene expression upon differentiation induced by macrophage colony stimulating factor (M-CSF). Cyclooxygenase (COX) inhibition by indomethacin reduced endogenous PGE2 production of macrophages and subsequently reduced arg1, IL10 and Mrc1, YmI and FizzI gene expressions. Of note, PGE2 phosphorylates CREB via EP2 and EP4 receptor ligation, thereby transcriptionally increasing C/EBP-β expression in BALB/c bone marrow derived macrophages. Activated CREB directly binds to the CREB-responsive element of the C/EBP-β promoter, such that PGE2 ultimately reinforces arg1, IL10 and Mrc1 gene expression. Cyclic AMP activator forskolin also phosphorylated CREB and induced the C/EBP-β cascade, but this was completely blocked by the PKA inhibitor, H89. Consequently, M-CSF grown macrophages inhibited T-cell proliferation but the inhibition ability was reduced when the COX is inhibited by indomethacin or macrophage C/EBP-β expression was decreased by siRNA transduction. Our results collectively describe the molecular basis for homeostatic macrophage differentiation by endogenous PGE2 .
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Affiliation(s)
- Yi Rang Na
- Macrophage Laboratory, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, Seoul, South Korea
| | - Daun Jung
- Macrophage Laboratory, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, Seoul, South Korea
| | - Bo Ruem Yoon
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea
| | - Won Woo Lee
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - Seung Hyeok Seok
- Macrophage Laboratory, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, Seoul, South Korea
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30
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Farooqi AA, Siddik ZH. Platelet-derived growth factor (PDGF) signalling in cancer: rapidly emerging signalling landscape. Cell Biochem Funct 2015; 33:257-65. [PMID: 26153649 DOI: 10.1002/cbf.3120] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/02/2015] [Accepted: 05/11/2015] [Indexed: 12/25/2022]
Abstract
Platelet-derived growth factor (PDGF)-mediated signalling has emerged as one of the most extensively and deeply studied biological mechanism reported to be involved in regulation of growth and survival of different cell types. However, overwhelmingly increasing scientific evidence is also emphasizing on dysregulation of spatio-temporally controlled PDGF-induced signalling as a basis for cancer development. We partition this multi-component review into recently developing understanding of dysregulation PDGF signalling in different cancers, how PDGF receptors are quantitatively controlled by microRNAs. Moreover, we also summarize most recent advancements in therapeutic targeting of PDGFR as evidenced by preclinical studies. Better understanding of the PDGF-induced intracellular signalling in different cancers will be helpful in catalysing the transition from a segmented view of cancer biology to a conceptual continuum.
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Affiliation(s)
| | - Zahid H Siddik
- University of Texas, MD Anderson Cancer Center, Houston, TX, 77030, USA
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31
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Liu Z, Liu H, Jiang J, Tan S, Yang Y, Zhan Y, Wu B. PDGF-BB and bFGF ameliorate radiation-induced intestinal progenitor/stem cell apoptosis via Akt/p53 signaling in mice. Am J Physiol Gastrointest Liver Physiol 2014; 307:G1033-43. [PMID: 25301184 DOI: 10.1152/ajpgi.00151.2014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Radiation-induced gastrointestinal (GI) syndrome currently has no effective prophylactic or therapeutic treatment. Previous studies and our data have demonstrated the important role of p53 in acute radiation-induced GI syndrome in mice. Many cytokines, such as tumor necrosis factor-α and fibroblast growth factor (bFGF), have been found to protect against radiation-induced intestinal injury, although the underlying mechanisms remain to be identified. Here, we report blockage of p53 through a protein kinase B (Akt) pathway in intestinal progenitor/stem cells or crypt cells as a novel molecular mechanism of growth factor-mediated intestinal radioprotection. Treatment with platelet-derived growth factor (PDGF-BB) or bFGF activated Akt phosphorylation in the intestinal crypt, lessened intestinal crypt p53 expression, decreased radiation-induced apoptosis in mouse intestinal progenitor/stem cell marker leucine-rich repeat-containing G protein-coupled receptor 5 (Lgr5)-positive cells by an average of 50%, and increased the survival rate of mice with abdominal radiation by 3 days in average. Conversely, the Akt inhibitor perifosine obstructed growth factor-simulated Akt phosphorylation while promoting radiation-induced p53 expression in intestinal crypts. Importantly, reduced Akt phosphorylation and elevated p53 expression due to the Akt inhibitor perifosine impaired intestinal progenitor/stem cells radioprotection provided by PDGF-BB and bFGF. Consistently, PDGF-BB and bFGF both upregulated Akt activation, suppressed radiation-induced p53 expression, and abrogated radiation-induced apoptosis in IEC-6 cells, although p53 overexpression in IEC-6 cells partially counteracted the radioprotection of PDGF-BB and bFGF. Our data suggest that intestinal crypt radioprotection by PDGF-BB and bFGF is dependent on regulation of Akt/p53 signaling.
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Affiliation(s)
- Zhihao Liu
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Huiling Liu
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jie Jiang
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Siwei Tan
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yidong Yang
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yashi Zhan
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Bin Wu
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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32
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Post-transcriptional up-regulation of PDGF-C by HuR in advanced and stressed breast cancer. Int J Mol Sci 2014; 15:20306-20. [PMID: 25383675 PMCID: PMC4264168 DOI: 10.3390/ijms151120306] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/16/2014] [Accepted: 10/28/2014] [Indexed: 01/20/2023] Open
Abstract
Breast cancer is a heterogeneous disease characterized by multiple genetic alterations leading to the activation of growth factor signaling pathways that promote cell proliferation. Platelet-derived growth factor-C (PDGF-C) is overexpressed in various malignancies; however, the involvement of PDGF-C in breast cancers and the mechanisms underlying PDGF-C deregulation remain unclear. Here, we show that PDGF-C is overexpressed in clinical breast cancers and correlates with poor prognosis. PDGF-C up-regulation was mediated by the human embryonic lethal abnormal vision-like protein HuR, which stabilizes the PDGF-C transcript by binding to two predicted AU-rich elements (AREs) in the 3'-untranslated region (3'-UTR). HuR is up-regulated in hydrogen peroxide-treated or ultraviolet-irradiated breast cancer cells. Clinically, HuR levels are correlated with PDGF-C expression and histological grade or pathological tumor-node-metastasis (pTNM) stage. Our findings reveal a novel mechanism underlying HuR-mediated breast cancer progression, and suggest that HuR and PDGF-C are potential molecular candidates for targeted therapy of breast cancers.
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33
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Ferrucci A, Leboffe L, Agamennone M, Di Pizio A, Fiocchetti M, Marino M, Ascenzi P, Luisi G. Ac-tLeu-Asp-H is the minimal and highly effective human caspase-3 inhibitor: biological and in silico studies. Amino Acids 2014; 47:153-62. [DOI: 10.1007/s00726-014-1855-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 10/09/2014] [Indexed: 10/24/2022]
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34
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Vasoprotective effect of PDGF-CC mediated by HMOX1 rescues retinal degeneration. Proc Natl Acad Sci U S A 2014; 111:14806-11. [PMID: 25267616 DOI: 10.1073/pnas.1404140111] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Blood vessel degeneration is critically involved in nearly all types of degenerative diseases. Therefore strategies to enhance blood vessel protection and survival are highly needed. In this study, using different animal models and cultured cells, we show that PDGF-CC is a potent vascular protective and survival factor. PDGF-CC deficiency by genetic deletion exacerbated blood vessel regression/degeneration in various animal models. Importantly, treatment with PDGF-CC protein not only increased the survival of retinal blood vessels in a model of oxygen-induced blood vessel regression but also markedly rescued retinal and blood vessel degeneration in a disease model of retinitis pigmentosa. Mechanistically, we revealed that heme oxygenase-1 (HMOX1) activity is critically required for the vascular protective/survival effect of PDGF-CC, because blockade of HMOX1 completely abolished the protective effect of PDGF-CC in vitro and in vivo. We further found that both PDGF receptors, PDGFR-β and PDGFR-α, are required for the vasoprotective effect of PDGF-CC. Thus our data show that PDGF-CC plays a pivotal role in maintaining blood vessel survival and may be of therapeutic value in treating various types of degenerative diseases.
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35
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Liu SJ, Zou Y, Belegu V, Lv LY, Lin N, Wang TY, McDonald JW, Zhou X, Xia QJ, Wang TH. Co-grafting of neural stem cells with olfactory en sheathing cells promotes neuronal restoration in traumatic brain injury with an anti-inflammatory mechanism. J Neuroinflammation 2014; 11:66. [PMID: 24690089 PMCID: PMC3977666 DOI: 10.1186/1742-2094-11-66] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 03/24/2014] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND We sought to investigate the effects of co-grafting neural stem cells (NSCs) with olfactory ensheathing cells (OECs) on neurological behavior in rats subjected to traumatic brain injury (TBI) and explore underlying molecular mechanisms. METHODS TBI was established by percussion device made through a weight drop (50 g) from a 30 cm height. Cultured NSCs and OECs isolated from rats were labeled by Hoechst 33342 (blue) and chloromethyl-benzamidodialkyl carbocyanine (CM-Dil) (red), respectively. Then, NSCs and/or OECs, separately or combined, were transplanted into the area surrounding the injury site. Fourteen days after transplantation, neurological severity score (NSS) were recorded. The brain tissue was harvested and processed for immunocytochemistry, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL), and reverse transcription-polymerase chain reaction (RT-PCR). RESULTS Significant neurological function improvement was observed in the three transplant groups, compared to the TBI group, and co-transplantation gave rise to the best improvement. Morphological evaluation showed that the number of neurons in cortex from combination implantation was more than for other groups (P <0.05); conversely, the number of apoptotic cells showed a significant decrease by TUNEL staining. Transplanted NSCs and OECs could survive and migrate in the brain, and the number of neurons differentiating from NSCs in the co-transplantation group was significantly greater than in the NSCs group. At the molecular level, the expressions of IL-6 and BAD in the co-graft group were found to be down regulated significantly, when compared to either the NSC or OEC alone groups. CONCLUSION The present study demonstrates for the first time the optimal effects of co-grafting NSCs and OECs as a new strategy for the treatment of TBI via an anti-inflammation mechanism.
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Affiliation(s)
- Su-Juan Liu
- Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yu Zou
- Institute of Neurological Disease, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Visar Belegu
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Long-Yun Lv
- Institute of Neuroscience, Kunming Medical University, Kunming, Yunnan 650031, China
| | - Na Lin
- Institute of Neuroscience, Kunming Medical University, Kunming, Yunnan 650031, China
| | - Ting-Yong Wang
- Institute of Neuroscience, Kunming Medical University, Kunming, Yunnan 650031, China
| | - John W McDonald
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Xue Zhou
- Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Qing-Jie Xia
- Institute of Neurological Disease, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ting-Hua Wang
- Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China
- Institute of Neurological Disease, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Institute of Neuroscience, Kunming Medical University, Kunming, Yunnan 650031, China
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